Work around for operator not being correct.

This is a STOPSHIP work-around until we figure out why
getSIMOperatorNumeric is not returning valid values.
It has returned NULL, "00000", "310004", "311480" and
once a value "83????", I don't remember the exact value.

Change-Id: I4f1d16c853047b72dd987572d3d67dcc2cd697a2